Compilare: main.cpp: In function 'int main()': main.cpp:54:19: warning: unused variable 'type' [-Wunused-variable] int n, m, *c, type, a, b; ^~~~ main.cpp:54:25: warning: unused variable 'a' [-Wunused-variable] int n, m, *c, type, a, b; ^ main.cpp:54:28: warning: unused variable 'b' [-Wunused-variable] int n, m, *c, type, a, b; ^ main.cpp:57:34: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%d%d", &n, &m); ^ main.cpp:67:72: warning: ignoring return value of 'int fscanf(FILE*, const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] fscanf(input, "%d %d %d", &e[i].source, &e[i].dest, &e[i].cost); ^